Adjustable tappet-wrench



R. P. REYNOLDS.

ADJUSTABLk TAPPET WRENCH.

APPLICATION FILED NOV.29.1920.

1,385,228. at nt d uly 19, 1921 my r. mains. or HARRISONVILLE, rnssonm.

ADJUSTABLE TAPPET-WBENCH.

Specification of Letters latent.

Patented July 19, 1921.

Application filed November 29, 1920. Serial No. 427,147.

T 0 all 1021077! it may concern:

Be it known that I, Ror P. Rnrnonns, a citizen of the United States, andresident of Harrisonville, county or Cass, State of Mis soari. haveinvented a certain new and useful Improvement in Adjustable Tappet-\Vrenches, of which the following is a complcte specification. 1 I

This invention relates to a tool for use in adjusting the liftof tappetvalves ofexplosive engines, and has for its objcctto produce a device ofthis character by which the tappet stem and the plunger ma be immovablyheld against turning and including: provision for effecting a relativelyfine ad justment oi the tappet stem and maintain inn such adjustmentduring the operation of tightening the lock nut found in connectiontherewith.

Another object is to produce a device of this character of simple,strong, durable,

efficient and inexpensive construction: and in order that it may befully understood, reference is to be had to the accompan iing drawing,in which:

Figure 1 is a perspective view of the device as it will appear when inuse in connection with the adjustment of a lock nut;

Fig. 2 is a section on the line II--Il of Fig. 1, to more clearlyillustrate the ball and socket and swivel connections of one of themembers of the device;

Fig. 3 is a section on the line III-J11 of Fig. 2; and

Fig. 4 is a section on the, line IV-IV of Fig. 3.

In the said drawing, where like reference characters identifycorresponding parts in all of the figures, 1 and .2 constitute'thehandles ot the device, the former being bifurcated at one of its ends asat 3, for the reception between the ears thus formed of the arm 2, andthe two members are secured in pivotal relation by means of a pivot pin4.

At its opposite end the handle 1 is pro vided with an L-shaped jaw 5,andpivoted thereto by means of cross-links 6 is a simi lar, but movablejaw T of L-shape to correspond with the aw 5. the shank of said niovablejaw being provided with a threaded perforation for the reception of aset screw 8 provided with a thumb portion 9 at its outer end, theopposite end being adapted to bear against the side of the handle 1. Bythis arrangement the movable jaw, in combinationwith the immovable jaw,may be adjust ed to accommodate the squared end of tappet"'plunger 10 ofan engine, not shown.

The handle :2 is provided with a pair of extensions 11 adapted toreceive, l or pivotal action between them a wrench 12 mounted on a pivotpin 13. lhe wrench is termed of two members. a movable jaw 1i and asubstantially fined jaw 15, havingtongue and groove relation, thetornier being provided with opposite grooves 16 and the latter hearing"a pair of spaced tongues 1?" For slidable interlocking engagement withthe grooves 16. The face of the movable jaw being threaded as acid forthe reception of a thumb nut Ill mounted on the jaw 15 witnin an opening20 thereof.

Mounted in the free end oi the shank of the immovable jaw 15 with a halland socket connection 21 is a set screw 25% provided with a thumbportion 23. The set screw is threaded through a swivel nut El mountedbetween the extensions ll oi handle 2, and is free for pivotal action onits trunnions :25. It will be understood that after the jaws 5 and (iare set to firmly grip the squared end of the plunger 10, that the jawsof the wrench 1:2 will be adjusted to grip the squared head :20 on theupper end of a threaded tappet stem 27, which is screwed into theplunger 10, as customary, and that in order to secure a final andaccurate adjustment and ill 11y hold the plunger and tappet in theirrelative positions while the lock nut 98 of the tappet is being:adjusted, the set screw will he turned to more securely hold the tappetfrom movement by leverage action.

A recapitulation of the ope mtion ot' the invention is believed to beunnecessary, other than to state that it will be understood that theadjustments of the loclr nut must he carried out through the use of anordinary wrench or other tool, and that the ball and socket and swivel,cohnectirm of set screw 22 is provided in order that said screw, whenturned may client the final adjustment of the tappet and retain it inadjusted position, while the tool as a whole operates to maintain theparts in finely adjusted relation while the lock nut :28 is tightened bythe use of a separate tool.

From the above description it will be apparent that I have produceda-device of the character set forth which possesses all the features ofadvantage named, and While I have described and illustrated the presferred embodiment of the same, I reserve the right to all' changesproperly falling within thespirit and scope of the appended claims. 7 V

hat I claim is 1. In a tool of the character described, a pair ofhandles bearing apivoted relation to each other, one of said handlesbeing provided at its outer end with a pair of jaws, and a wrenchcarried by the companion handle, and means carried by said second handlefor operating the wrench, said handles being so proportioned that thewrench and jaws may be brought simultaneously into operative engagementwith parts working about the same axis.

2. In a tool of the character described, a

pair of handles bearing a pivoted relation to each other, one of saidhandles being provided at its outer end with a pair of jaws; thecompanion handle being provided with a pair of extensions, a wrenchadapted to have a pivotal connection with said extensions; and meansseparate from. said pivotal point for imparting pivotal action to thewrench and retaining it in any predetermined position of adjustment.

3. In a tool of the character described, a pair of handles bearing apivoted relation to each other, one of said handles being provided atits outer end with an immovable jaw having a movable jaw pivotedthereto,

and means for locking the movable jaw against outward movement; thecompanion handle being provided with a wrench at its outer end and beingso proportioned that its wrench may be brought simultaneously with saidjaws into operative engagement with parts working about the same axis.

4:. In a tool of the character described, a pair of handles bearing apivoted relation to each other, one of said handles being provided atits outer end with an immovable jaw having a movable jaw pivotedthereto, and means for locking the movable jaw against outward movement;the companion handle being provided with a wrench at its outer end. andmeans carried by said handle for operating said wrench.

5. In a tappet adjusting tool, a pair of handles bearing a pivotedrelation to each other. one of said handles being formed with animmovable jaw at its outer end having a movable jaw pivoted thereto, anda set screw threaded in one end of the movable jaw and adapted to abutagainst the inner side of the handle; the companion handle beingprovided with a pair of extensions. a wrench pivoted bet-ween saidextension, means having a ball and socket connection with said wrenchfor operating the latter.

In witness whereof I afiix my signature.

ROY P. REYNOLDS.

